ZHZ4B type high voltage insulation resistance tester overview
The withstand voltage test of ZHZ4B type high voltage insulation resistance tester is suitable for all kinds of motor, instrument, household appliances and measuring insulation resistance, use is also suitable for the production line of the. The tester is flexible and easy to use, safe and reliable, good performance and easy maintenance. Is in line with the GB4706.1 "Requirements for the safety of household and similar electrical appliances general", GB9706.1 "Medical electrical equipment - Part 1: General requirements for safety and" GB4943 and GB4793.1 Test the relevant provisions of the national standard requirements of the test equipment required. The tester to carry out Q/TPGG2ZHZ A series of high voltage insulation resistance tester standard enterprise.
ZHZ4B type high voltage insulation resistance tester specification and technical characteristics
2.1 instrument specifications and technical parameters.
capacity KVA0.50.75
Withstanding voltage
output voltage ACkV0.5 ~ Five
The basic error. Five % Fs
The current alarm MA0.5,1,23,5,10200.5,1,25,10,20100
Tolerance. Ten %. Five %. Ten %. Five %
Test time S1 ~ Ninety-nine
insulation resistance
Rated voltage DCV500/1000
Tolerance. Ten %
measuring range M Omega Zero point one ~ 500/0.2 ~ One thousand
The basic error. Ten % Rs
Test time S1 ~ Ninety-nine
2.2 product features
A can complete a wiring of the analyte withstanding voltage test and insulation resistance measurement.
B test program set, can be a single test (pressure or insulation), and continuous testing (" I-P "After the first insulation or pressure" P-I "After the first voltage insulation).
C can set the output voltage and current withstand voltage alarm value and test time; insulation resistance rated voltage, insulation resistance value and alarm test time.
D can automatically determine whether the detected object qualified sound.
E high voltage output waveform 50Hz The sine wave, the rated voltage of insulation resistance for DC voltage.
F according to user requirements can be increased by wire interface.
2.3 conditions of use
temperature Zero C ~ Forty C
The relative humidity is not more than Eighty %
No strong electromagnetic interference, without a lot of dust, corrosive gases and good ventilation.
2.4 power supply
Communication 220V Tolerance. Ten %, 50Hz .
2.5 dimensions and weight.
capacity KVA0.50.75
appearance L * B * H , Mm * 440 Three hundred and ninety * Two hundred and thirty-five
weight Kg1720
ZHZ4B type high voltage insulation resistance tester structure and working principle
3.1 working principle
The test instrument is composed of three parts: voltage resistance, insulation resistance and switching logic. High voltage part is responsible for the measurement of resistance to voltage circuit of voltage and current by the meter indication. The leakage current exceeds the set value, automatically cut off the circuit, and the alarm. Insulation resistance measurement of insulation resistance part is responsible for the loop and the header indicating. If the test time after the end of the insulation resistance is less than the set value alarm. Logic switch part testing according to the testing procedures selected by the user.
3.2 function key layout
1 "insulation resistance meter" Two "Pressure state indicator
3 "insulation" indicator lamp Four "Insulation time" display window
5 "pressure time window" Six "High voltage" header
7 "ground" end Eight The "high" output
9 pressure "time setting" dial Ten "The current selection pressure alarm button
"11 project" key Twelve The voltage adjust knob
13 insulation "alarm". Fourteen An "alarm set" button
The 15 insulating "voltage" button Sixteen "Set" dial insulation
17 "reset" button Eighteen The "start" button
19 "power switch" (indicator)
1 power socket Two Fuse
3 grounding socket Four Nameplate
The "5 wire" socket (optional)
4ZHZ4B type high voltage insulation resistance tester safety precautions
4.1 before using please read the instructions and follow the instructions step in operation.
4.2 do not use non original accessories, in order to avoid danger.
4.3 instruments must be well grounded, not allowed to tie in the tap water pipe.
4.4 the instrument to generate sufficient pressure caused casualties. In order to prevent the electric shock accident, before using this equipment, please wear insulating rubber gloves, foot pad insulation rubber pad, and then the single hand operation.
4.5 instruments in the testing condition, please do not touch the test line, the object to be measured, and the output end of the test stick.
4.6 do not make the short circuit test line, the wire line and the AC power line, lest the whole instrument charged.
4.7 when testing a sample, to replace another object to be measured, should be the instrument under the "reset", "measurement" lights out and showing the value of voltage" Zero "State. Special note: during the test, please do not touch the high-voltage testing head, so as to avoid accidents.
4.8 when the power switch is switched off, such as open again, you need to wait a few seconds later, don't take action for the power switch on and off, in order to avoid the wrong actions damage the instrument.
4.9 avoid using in the following conditions:
A, to avoid the rain wet and placed in direct sunlight.
B please away from fire and heat, to prevent the high temperature of the machine.
C handling or maintenance, should be shut down and will remove the power line.
ZHZ4B type high voltage and insulation resistance tester operation
5.1 instruments of initial state
The power supply is switched on, the counterclockwise rotation of the voltage adjust knob in the end, the power switch is in the "on" position, "
The source "indicator light, the instrument is in the initial state.
5.2 function settings and instructions
5.2.1 high voltage part
The 5.2.1.1 will "project" key on the single "pressure" gear.
5.2.1.2 according to the needs of the current alarm value, press the "alarm current selection pressure corresponding to the key in the current file.
The output voltage of 5.2.1.3 set
Choose "pressure time" display window showing the value 60s Press the "start" button. , "Pressure" in the "measure" indicator lights, according to the required test voltage, the clockwise rotation of the voltage adjust knob, and observe the "high voltage" value reaches the desired voltage value in the header, stop turning the "voltage adjusting knob, and maintain the voltage adjust position of rotation invariant,
Press the "reset" button, the output voltage will be set. Note: after the testing process, if we do not change the test voltage of each test, just click the "start" button. If you need to change the test voltage, then repeat the above steps.
5.2.1.4 testing time
According to the required test time, the pressure on the dial "time"" + "Or" - ", on which the numerical and" pressure time "display window shows the value at the same time to achieve the required test time value, press the" stop pressure time setting "dial" + "Or" - ", the test set is completed.
5.2.2 insulation resistance part
The 5.2.2.1 will "project" key in the single "insulation" gear.
5.2.2.2 according to the rated voltage value, press the corresponding voltage insulation voltage selection keys.
Note: the "insulation resistance meter for the line" 1000M Omega /1000V ;
Under the calibration line 500M Omega /500V .
5.2.2.3 insulation resistance alarm set
Press the "alarm" button, insulation and insulation "alarm" adjustment potentiometer, "insulation resistance meter" pointer to the required insulation resistance of the alarm value, then release the insulation "alarm" button, then the insulation resistance of the alarm set value is.
5.2.2.4 testing time
According to the required test time, press the "set" insulation dial" + "Or" - ", on which the numerical and" insulating time "display window shows the value at the same time to achieve the required test time value, stop the insulation" time dial settings "" + "Or" - ", the test set is completed.
5.3 according to press the "project" key in the corresponding test procedures are as follows.
I-P insulated voltage
P-1 first voltage insulation
Single pressure pressure
insulation . Single insulation
5.4 steps
5.4.1 in determining instrument is in the initial state of high-pressure test line (red) is inserted into the instrument of high output, the other end is connected with the measured electricity parts or power input terminal; and the other a testing ground wire (black) end is inserted into the instrument of "ground" and tighten the nut on the other end. With the end of the analyte shell (metal) or the power input terminal is connected to ground (if the object to be measured with the earth or the instrument is connected to the ground, the ground strap must be with it).
5.4.2 carefully check the wiring is correct, can press the "start" button, the instrument was tested according to the test program selected by the user, the test status is as follows:
5.4.2.1 single test condition
A - single pressure pressure
This "pressure state" indicator in the "measurement" light, "high voltage" shows the value for the current value of the test voltage meter, the analyte in the test without breakdown or leakage current is smaller than the preset value, the setting time, judged as qualified products, "high voltage state" means in the light of "qualified" lights, and cut off the output voltage; if the analyte in the test is the breakdown or leakage current is greater than the set value, it is judged as unqualified products, cut off the output voltage immediately, the buzzer will alarm at the same time, the "pressure state" light "warning lights.
B - single insulation insulation
This "insulation" light "measuring" light "insulation resistance meter" in showing the value of insulation resistance of the analyte to be set to a value of time, such as the insulation resistance of the object to be measured is greater than the set value, judged as qualified products, the insulation condition of "light" in the lattice lights; such as the measured insulation resistance is smaller than the set value, as unqualified products, "insulation" light "warning lights, buzzer alarm.
5.4.2.2 continuous test status
A" I-P "After the first insulation withstand voltage
According to the instrument 5.4.2.1/b To test, and then automatically enter 5.4.2.1/a Test status.
B" P-I "After the first withstand voltage insulation
According to the instrument 5.4.2.1/a To test, and then automatically enter 5.4.2.1/b Test status.
Note: only when the first test qualified, a project will enter the test instrument; such as the first test project failed, the instrument is no longer a project after the test.
No matter 5.4.2.3 instrument to complete the single test or continuous testing, must press the "reset" button, the instrument is in the initial state.
ZHZ4B type high voltage insulation resistance tester and common breakdown elimination method
6.1 no power supply indicator, the power indicator light is not bright
A please check the power supply is normal, if not normal check exchange 220V And, whether the scope of normal use.
B please check whether the fuse is damaged, if the fuse is damaged, please replace the same type of fuse.
C please check whether the power transformer output, if there is no output, replace the power supply transformer.
Please check the D voltage regulator circuit Seven thousand eight hundred and twelve If damaged, if damaged please change Seven thousand eight hundred and twelve .
6.2 high voltage part
6.2.1 boot alarm
Please check the a leakage current switch board sampling resistor is damaged, if damaged, please replace the file corresponding to the sampling resistor.
Please check the B LM324 Whether there is damage, if damaged, please replace LM324 .
6.2.2 boot voltage indicator
Please check the a SCR is damaged, if damaged, please replace the same specifications of scr.
Please check the B. Three thousand and sixty-one If damaged, if damaged, please replace Three thousand and sixty-one .
6.2.3 boot in test mode
Please check the A NE556 If damaged, if damaged, please replace NE556 .
Please check the B start button is damaged, if damaged, please replace the start button.
6.2.4 instrument start reset failure
Please check the A NE556 If damaged, if damaged, please replace NE556 .
Please check the B start, the reset button is damaged, if damaged, please replace the start, reset button.
6.2.5 boot press start Jian, measurement of light, but no voltage indicator
Please check the a high voltage transformer is damaged, if damaged, please replace the high voltage transformer.
B please check the voltage meter is damaged, if damaged, please replace the voltage meter.
The police immediately after the start of 6.2.6
Please check the current sampling resistor a corresponding to the key is damaged, if damaged, please replace the same standard resistor.
Please check the B Two hundred and twenty Omega /5W The resistance is damaged, if damaged, please replace the resistance.
Please check the C LM324 Whether there is damage, if damaged, please replace LM324 .
The 6.3 insulating part
6.3.1 instrument start, no rated voltage
Please check the A R24 , R27 , R30 , R33 , R23 , R26 , R28 , R31 , R32 , R29 , R35 , R37 Whether there is damage, if damaged, please replace the same standard resistor.
Please check the B D15 , D16 , D25 , D26 If damaged, if damaged, please replace the same specifications of the diode.
Please check the C T1 Oscillation coil is damaged, if damaged, please replace the same specifications of the oscillation coil.
The 6.3.2 instrument has started, the rated voltage, insulation resistance indicator
A check the insulation resistance meter is damaged, if damaged, please replace.
Please check the B RP1 , RP2 , D17 , D18 , C21 , R38 If damaged, if damaged, please replace the corresponding device.
The 6.3.3 instrument starts, the measured value is less than the alarm set value, test time, alarm instrument
Please check the A IC7 If damaged, if damaged, please replace IC7 ( Three hundred and fifty-eight ).
B please check whether the alarm lamp light, if the alarm lights, buzzer sound, please replace the buzzer; if the alarm does not light, check IC3 If damaged, if damaged, please replace IC3 ( Four thousand and thirteen ).
7 calibration
7.1 high voltage part
In the absence of the power supply is switched on, such as instrument "high voltage" header pointer and scale dividing line" Zero "Point do not coincide, using a screwdriver rotating header below the white (semicircle) is zero, the head pointer and scale dividing line" Zero "At the same point. The project will select key under single "pressure" gear.
The output voltage of 7.1.1
The instrument is in the initial state, wiring.
The output terminal voltage calibration
Press the "start" button, "pressure" in the "measure" indicator lights, the clockwise rotation of the voltage adjust knob, the pressure gauge reading 3kV At the same time, write down ZHZ4B The output voltage value in header voltage resistance, basic error and output voltage is calculated in accordance with table One In the requirements, such as ultra poor adjustable plate" RP4 "To meet the requirements of the potentiometer. Then click the "reset" button, and then the method respectively. 1kV , 2kV , 4kV And, 5kV Should be in accordance with the table One The basic requirements of the error of output voltage. Check the end must click the "reset" button.
7.1.2 alarm current
The instrument is in the initial state, the pressure alarm "current" button in the 1mA The current file, and press the table Three Select the corresponding
The load resistance of wire.
The current alarm MA0.51251020100
Load resistance K Omega /W1000/1500/1250/1100/220/525/105/50
The current alarm calibration terminal
Press the "start" button, "pressure" in the "measure" indicator lights, slowly rotating the voltage adjust to rotation 450V About the observation of AC current meter on the current value, and then very slowly rotating "voltage adjusting button for equipment alarm alarm readout before the current value, and calculate the current alarm tolerance should be consistent with the table One In the request, and then click the "reset" button. According to the above method, select the current file and replace the corresponding load resistance, respectively check alarm current remaining points should be consistent with the table
1 requirements. Check the end must click the "reset" button.
The 7.2 part of the insulation resistance
"Project" key in the single "insulation" gear.
The rated voltage of 7.2.1
The instrument is in the initial state, wiring.
Rated voltage: the voltage calibration of wiring insulation selection "key in 500V File, press the "start" button, the electrostatic voltmeter reads the voltage value, and the calculation error of the rated voltage should be consistent with the table One The requirements, such as ultra poor adjustable plate" RP3 "To meet the requirements of the potentiometer. Then click the "reset" button, and then according to the above method, check 1000V The error should be in accordance with table One Request.
7.2.2 insulation resistance
7.2.2.1 before the power supply is switched on, such as the "insulation resistance instrument pointer" header and scale dividing line "-" point do not coincide with a screwdriver, rotate the header below the white (semicircle) is zero, the coincidence of header pointer and scale dividing line quotupquot point.
7.2.2.2 the instrument is in the initial state, wiring.
Calibration of wiring insulation resistance
The "voltage" button on the insulation 500V File, press the "start" button, "insulation resistance meter pointer" observation on whether to 10M Omega, if not regulated on a printing plate RP1 The potentiometer to conform to the requirements, and then press the "reset" button.
7.2.2.3 the instrument is in the initial state, the "voltage" button on the insulation 500V The gear, the instrument "high pressure" and "ground" output shorted, then press "start" button and observe the "insulation resistance meter pointer on whether"" Zero "If no coincidence, can be adjusted on a printing plate" RP2 "The coincidence of potentiometer. step 7.2.2.2 and 7.2.2.3 Repeat several times, until the value does not change, it is the end of the calibration of insulation resistance.
8 complete
ZHZ4B type high voltage insulation resistance testing instrument
A power line
A set of test bar
Use a manual
Product certificate
9 by definition
10 other
10.1 instruments in transport and use, should be careful to avoid severe long-term vibration.
10.2 instruments should be kept indoors, the ambient temperature is Zero C ~ Forty C, relative humidity of not more than Eighty %, and in the air should not be sufficient to cause corrosion of harmful substances.
10.3 instruments from the user purchase date Twelve Within a month, when the user fully comply with the use rules specified in the specification, and the user does not attempt to change the instrument internal structure, it is found that the instrument is not working properly, give the factory responsible for replacement or repair.
10.4 manufacturing plants have the right to make changes to the instrument specifications without notice.
L EFUP
Poisonous and harmful substances or elements contained in the instrument is not used in the normal conditions, leakage or mutation, users use the instrument will not cause serious pollution to the environment or causing serious damage to the person and property of the period Ten Year. The poisonous and harmful substances or elements of the name and logo content see.
A body of XXX, XXX
Shell plating XXX X Eighty
LCD screen X Eighty X Eighty
Circuit board X XXX, eighty
Contactor X XXX, eighty
Transformer ( Pressure regulator X) XXX, eighty
switch X XXX, eighty
Ten: the concentration of the hazardous substance in all homogeneous materials in the parts are in SJ/T11363-2006 The standard limits for the following.
X said: this hazardous substance contained in at least one of the homogeneous materials. SJ/T11363-2006 Limit standard requirements.